Surgical blade



FIG. 1 is a perspective view of a surgical blade;

FIG. 2 is a front side view of the surgical blade;

FIG. 3 is a rear side view of the surgical blade;

FIG. 4 is a top plan view of the surgical blade;

FIG. 5 is a bottom plan view of the surgical blade;

FIG. 6 is a right side view of the surgical blade; and,

FIG. 7 is a left side view of the surgical blade. 

CLAIM I claim the ornamental design for a surgical blade, as shown and described. 